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                    12.2020-01-16-java基本语法
            
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                    [arthas]
            
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                    1.2019-12-28-arthas-example
            
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                    2.2019-12-28-arthas添加支持执行历史命令的shell功能
            
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                    3.2020-01-10-思考性能调优
            
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                    5.2020-01-10-性能调优举例一
            
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                    6.2020-01-10-性能调优举例三
            
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                    7.2020-01-10-性能调优举例二
            
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                    9.2020-01-15-性能调优举例五
            
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                    10.2020-05-12-性能调优举例六
            
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                    11.arthas-mind-map
            
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                    3.2019-12-30-dubbo面试
            
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                    1.2019-12-30-性能调优
            
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                    [netty]
            
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                    1.2020-01-16-netty入门
            
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                    2.2020-01-16-netty核心概念
            
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                    1.2019-12-28-solr-7.6.0.tgz安装
            
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                    [spring]
            
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                    1.2020-01-12-SpringBoot属性读取方式介绍
            
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        <li class="chapter " data-level="2.13.2" data-path="../spring/2020-01-12-使用spring boot+mybatis plus快速入门.html">
            
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                    2.2020-01-12-使用spring boot+mybatis plus快速入门
            
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        <li class="chapter " data-level="2.13.3" data-path="../spring/2020-01-13-spring-initMethod-destoryMethod.html">
            
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                    3.2020-01-13-spring-initMethod-destoryMethod
            
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                    4.2020-01-13-spring循环依赖
            
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                    5.2020-01-13-spring源码随记
            
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        <li class="chapter " data-level="2.13.6" data-path="../spring/2020-01-13-自定义mini-spring.html">
            
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                    6.2020-01-13-自定义mini-spring
            
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                    [websocket]
            
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                    1.2019-12-30-webscoket-springboot通信
            
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                <span>
            
                    
                    [linux]
            
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                    1.2019-12-28-Linux常用命令和快捷键
            
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        <li class="chapter " data-level="2.15.2" data-path="../../linux/2019-12-28-从零到一环境安装.html">
            
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                    2.2019-12-28-从零到一环境安装
            
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        <li class="chapter " data-level="2.15.3" data-path="../../linux/2019-12-30-vi-常用命令.html">
            
                <a href="../../linux/2019-12-30-vi-常用命令.html">
            
                    
                    3.2019-12-30-vi-常用命令
            
                </a>
            

            
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        <li class="chapter " data-level="2.15.4" data-path="../../linux/2019-12-31-awk命令.html">
            
                <a href="../../linux/2019-12-31-awk命令.html">
            
                    
                    4.2019-12-31-awk命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.5" data-path="../../linux/2019-12-31-cup信息分析.html">
            
                <a href="../../linux/2019-12-31-cup信息分析.html">
            
                    
                    5.2019-12-31-cup信息分析
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.6" data-path="../../linux/2019-12-31-shell编程.html">
            
                <a href="../../linux/2019-12-31-shell编程.html">
            
                    
                    6.2019-12-31-shell编程
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.7" data-path="../../linux/2019-12-31-top命令.html">
            
                <a href="../../linux/2019-12-31-top命令.html">
            
                    
                    7.2019-12-31-top命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.8" data-path="../../linux/2019-12-31-普通用户docker的问题.html">
            
                <a href="../../linux/2019-12-31-普通用户docker的问题.html">
            
                    
                    8.2019-12-31-普通用户docker的问题
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.9" data-path="../../linux/2020-01-01-centos7 安装kubernetes.html">
            
                <a href="../../linux/2020-01-01-centos7 安装kubernetes.html">
            
                    
                    9.2020-01-01-centos7 安装kubernetes
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.10" data-path="../../linux/2020-01-01-centos安装常用配置.html">
            
                <a href="../../linux/2020-01-01-centos安装常用配置.html">
            
                    
                    10.2020-01-01-centos安装常用配置
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.11" data-path="../../linux/2020-01-01-docker使用.html">
            
                <a href="../../linux/2020-01-01-docker使用.html">
            
                    
                    11.2020-01-01-docker使用
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.12" data-path="../../linux/2020-01-01-kubernetes使用.html">
            
                <a href="../../linux/2020-01-01-kubernetes使用.html">
            
                    
                    12.2020-01-01-kubernetes使用
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.13" data-path="../../linux/2020-05-12-PG有用的SQL.html">
            
                <a href="../../linux/2020-05-12-PG有用的SQL.html">
            
                    
                    13.2020-05-12-PG有用的SQL
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.14" data-path="../../linux/2020-05-12-vim命令.html">
            
                <a href="../../linux/2020-05-12-vim命令.html">
            
                    
                    14.2020-05-12-vim命令
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.16" >
            
                <span>
            
                    
                    [automate]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.16.1" data-path="../../linux/automate/2020-01-12-redis伪集群创建脚本.html">
            
                <a href="../../linux/automate/2020-01-12-redis伪集群创建脚本.html">
            
                    
                    1.2020-01-12-redis伪集群创建脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.16.2" data-path="../../linux/automate/2020-01-12-tomcat集群创建脚本.html">
            
                <a href="../../linux/automate/2020-01-12-tomcat集群创建脚本.html">
            
                    
                    2.2020-01-12-tomcat集群创建脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.16.3" data-path="../../linux/automate/2020-01-12-zookeeper自动化脚本.html">
            
                <a href="../../linux/automate/2020-01-12-zookeeper自动化脚本.html">
            
                    
                    3.2020-01-12-zookeeper自动化脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.16.4" data-path="../../linux/automate/2020-01-12-其他自动化脚本.html">
            
                <a href="../../linux/automate/2020-01-12-其他自动化脚本.html">
            
                    
                    4.2020-01-12-其他自动化脚本
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.17" >
            
                <span>
            
                    
                    [MySQL]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.17.1" data-path="../../MySQL/2019-12-31-mysql常用命令.html">
            
                <a href="../../MySQL/2019-12-31-mysql常用命令.html">
            
                    
                    1.2019-12-31-mysql常用命令
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.18" >
            
                <span>
            
                    
                    [nginx]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.18.1" data-path="../../nginx/2019-12-29-Nginx-Keepalived高可用集群.html">
            
                <a href="../../nginx/2019-12-29-Nginx-Keepalived高可用集群.html">
            
                    
                    1.2019-12-29-Nginx-Keepalived高可用集群
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.18.2" data-path="../../nginx/2020-01-16-nginx参数详细说明.html">
            
                <a href="../../nginx/2020-01-16-nginx参数详细说明.html">
            
                    
                    2.2020-01-16-nginx参数详细说明
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.19" >
            
                <span>
            
                    
                    [other]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.19.1" data-path="../../other/2019-12-28-知识小计.html">
            
                <a href="../../other/2019-12-28-知识小计.html">
            
                    
                    1.2019-12-28-知识小计
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.19.2" data-path="../../other/2020-01-04-科学上网.html">
            
                <a href="../../other/2020-01-04-科学上网.html">
            
                    
                    2.2020-01-04-科学上网
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.19.3" data-path="../../other/2020-05-13-正则表达式.html">
            
                <a href="../../other/2020-05-13-正则表达式.html">
            
                    
                    3.2020-05-13-正则表达式
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.19.4" data-path="../../other/template.html">
            
                <a href="../../other/template.html">
            
                    
                    4.template
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.20" >
            
                <span>
            
                    
                    [PostgreSQL]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.20.1" data-path="../../PostgreSQL/2019-12-28-PostgreSQL安装文档.html">
            
                <a href="../../PostgreSQL/2019-12-28-PostgreSQL安装文档.html">
            
                    
                    1.2019-12-28-PostgreSQL安装文档
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.2" data-path="../../PostgreSQL/2019-12-28-Postgres学习笔记.html">
            
                <a href="../../PostgreSQL/2019-12-28-Postgres学习笔记.html">
            
                    
                    2.2019-12-28-Postgres学习笔记
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.3" data-path="../../PostgreSQL/2019-12-28-脚本MYSQL导出数据到PG.html">
            
                <a href="../../PostgreSQL/2019-12-28-脚本MYSQL导出数据到PG.html">
            
                    
                    3.2019-12-28-脚本MYSQL导出数据到PG
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.4" data-path="../../PostgreSQL/2020-01-04-docker-PostgreSQL安装文档.html">
            
                <a href="../../PostgreSQL/2020-01-04-docker-PostgreSQL安装文档.html">
            
                    
                    4.2020-01-04-docker-PostgreSQL安装文档
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.20.5" data-path="../../PostgreSQL/2020-01-17-阿里云PG主从切换问题.html">
            
                <a href="../../PostgreSQL/2020-01-17-阿里云PG主从切换问题.html">
            
                    
                    5.2020-01-17-阿里云PG主从切换问题
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.21" >
            
                <span>
            
                    
                    [python]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.21.1" data-path="../../python/2019-12-28-pip-install指定国内源镜像.html">
            
                <a href="../../python/2019-12-28-pip-install指定国内源镜像.html">
            
                    
                    1.2019-12-28-pip-install指定国内源镜像
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.21.2" data-path="../../python/2019-12-30-python内置函数.html">
            
                <a href="../../python/2019-12-30-python内置函数.html">
            
                    
                    2.2019-12-30-python内置函数
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.21.3" data-path="../../python/2019-12-30-一图搞懂基本python语法 .html">
            
                <a href="../../python/2019-12-30-一图搞懂基本python语法 .html">
            
                    
                    3.2019-12-30-一图搞懂基本python语法 
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.22" >
            
                <span>
            
                    
                    [redis]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.22.1" data-path="../../redis/2019-12-28-redis5.0.3安装.html">
            
                <a href="../../redis/2019-12-28-redis5.0.3安装.html">
            
                    
                    1.2019-12-28-redis5.0.3安装
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.22.2" data-path="../../redis/2019-12-28-redis5.0.3集群搭建.html">
            
                <a href="../../redis/2019-12-28-redis5.0.3集群搭建.html">
            
                    
                    2.2019-12-28-redis5.0.3集群搭建
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.23" >
            
                <span>
            
                    
                    [tool]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.23.1" data-path="../../tool/2019-12-28-idea高效使用技巧和快捷键.html">
            
                <a href="../../tool/2019-12-28-idea高效使用技巧和快捷键.html">
            
                    
                    1.2019-12-28-idea高效使用技巧和快捷键
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.23.2" data-path="../../tool/2019-12-28-PlantUML画图脚本.html">
            
                <a href="../../tool/2019-12-28-PlantUML画图脚本.html">
            
                    
                    2.2019-12-28-PlantUML画图脚本
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.23.3" data-path="../../tool/2019-12-30-vscode高效使用.html">
            
                <a href="../../tool/2019-12-30-vscode高效使用.html">
            
                    
                    3.2019-12-30-vscode高效使用
            
                </a>
            

            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.24" >
            
                <span>
            
                    
                    [windows]
            
                </span>
            

            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.24.1" data-path="../../windows/2020-01-12-本地服务成为互联网服务.html">
            
                <a href="../../windows/2020-01-12-本地服务成为互联网服务.html">
            
                    
                    1.2020-01-12-本地服务成为互联网服务
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.24.2" data-path="../../windows/2020-01-12-注册bat为windows服务.html">
            
                <a href="../../windows/2020-01-12-注册bat为windows服务.html">
            
                    
                    2.2020-01-12-注册bat为windows服务
            
                </a>
            

            
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                                <p>arthas&#x662F;&#x963F;&#x91CC;&#x5F00;&#x6E90;&#x7684;&#x7EBF;&#x4E0A;&#x6027;&#x80FD;&#x8C03;&#x4F18;&#x5229;&#x5668;,&#x6709;&#x4E2D;&#x6587;&#x6587;&#x6863;&#x53EF;&#x4F9B;&#x53C2;&#x8003;&#x5B66;&#x4E60;,<a href="https://alibaba.github.io/arthas/install-detail.html" target="_blank">https://alibaba.github.io/arthas/install-detail.html</a></p>
<h1 id="&#x6027;&#x80FD;&#x8C03;&#x4F18;&#x5206;&#x6790;&#x4E3E;&#x4F8B;">&#x6027;&#x80FD;&#x8C03;&#x4F18;&#x5206;&#x6790;&#x4E3E;&#x4F8B;</h1>
<h2 id="&#x67D0;&#x9875;&#x9762;&#x5237;&#x65B0;&#x6027;&#x80FD;&#x8C03;&#x4F18;">&#x67D0;&#x9875;&#x9762;&#x5237;&#x65B0;&#x6027;&#x80FD;&#x8C03;&#x4F18;</h2>
<pre><code>&#x80CC;&#x666F;: &#x67D0;&#x9875;&#x9762;&#x6570;&#x636E;&#x5E93;&#x6761;&#x6570;20&#x4E07;+ , &#x9875;&#x9762;&#x5237;&#x65B0;&#x65F6;&#x9700;&#x8981;10&#x79D2;&#x4EE5;&#x4E0A;
</code></pre><h2 id="&#x9996;&#x5148;&#x521D;&#x6B65;&#x5B9A;&#x4F4D;">&#x9996;&#x5148;&#x521D;&#x6B65;&#x5B9A;&#x4F4D;</h2>
<pre><code>&#x7531;&#x4E8E;&#x662F;&#x5237;&#x65B0;&#x6309;&#x94AE;,&#x4F1A;&#x8FDB;&#x5165;bos&#x6846;&#x67B6;&#x7684;XxxPageRefresh&#x7C7B;,&#x6B64;&#x65F6;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;&#x5DE5;&#x5177;arthas&#x8FDB;&#x884C;&#x8FFD;&#x8E2A;
&#x4F7F;&#x7528;trace&#x547D;&#x4EE4;&#x53EF;&#x4EE5;&#x67E5;&#x770B;&#x7C7B;&#x4E2D;&#x54EA;&#x4E9B;&#x65B9;&#x6CD5;&#x53EF;&#x80FD;&#x88AB;&#x8C03;&#x7528;,&#x751A;&#x81F3;&#x65B9;&#x6CD5;&#x6D88;&#x8017;&#x7684;&#x65F6;&#x95F4;&#x90FD;&#x4F1A;&#x88AB;&#x6253;&#x5370;&#x51FA;&#x6765;,&#x5177;&#x4F53;&#x5982;&#x4E0B;
</code></pre><p>&#x5728;linux&#x547D;&#x4EE4;&#x884C;arthas&#x76EE;&#x5F55;&#x6267;&#x884C; java -jar arthas-boot.jar ,&#x63A5;&#x7740;&#x9009;&#x62E9;&#x5BF9;&#x5E94;&#x7684;&#x8FDB;&#x7A0B;id,&#x6700;&#x540E;&#x8FDB;&#x5165;arthas&#x547D;&#x4EE4;&#x884C;</p>
<p>&#x8F93;&#x5165;&#x5982;&#x4E0B;&#x547D;&#x4EE4;(&#x4ECB;&#x7ECD;: trace &#x5168;&#x7C7B;&#x540D; &#x661F;&#x53F7;&#x4EE3;&#x8868;&#x6240;&#x6709;&#x65B9;&#x6CD5; , &#x6253;&#x5370;&#x7ED3;&#x679C;&#x5982;&#x4E0B;) </p>
<pre><code class="lang-shell">$ trace com.xxx.yyy.zzz.XxxPageRefresh *   
Press Q or Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:3) cost in 211 ms.
</code></pre>
<p>&#x6B64;&#x65F6;&#x6211;&#x4EEC;&#x53EA;&#x8981;&#x5728;&#x70B9;&#x51FB;&#x5237;&#x65B0;&#x6309;&#x94AE;,&#x5C31;&#x53EF;&#x80FD;&#x4F1A;&#x6253;&#x5370;&#x5982;&#x4E0B;&#x5185;&#x5BB9;</p>
<pre><code class="lang-shell">`---ts=2019-12-02 11:09:29;thread_name=DubboServerHandler-172.19.0.1:20880-thread-151/traceId:4d56a800d72a8000/time:1575256169282;id=37e;is_daemon=true;priority=5;TCCL=sun.misc.Launcher$AppClassLoader@18b4aac2
    `---[10635.845458ms] com.xxx.yyy.zzz.XxxPageRefresh:doSomething() #&#x8FD9;&#x662F;&#x5165;&#x53E3;&#x65B9;&#x6CD5;,&#x4E0B;&#x9762;&#x90FD;&#x662F;&#x8BE5;&#x65B9;&#x6CD5;&#x5185;&#x7684;&#x65B9;&#x6CD5;,&#x5C42;&#x7EA7;&#x5F88;&#x660E;&#x786E;
        +---[0.01632ms] com.xxx.yyy.zzz.XxxPageRefresh:getView() #32
        +---[0.014282ms] com.xxx.mmm.ViewPage:getTreeViewPage() #35
        +---[5.047444ms] com.xxx.mmm.ViewPage:clearSelection() #39
        `---[10630.37844ms] com.xxx.mmm.ViewPage:XxxPageRefresh() #40   &#x4E00;&#x822C;&#x8017;&#x65F6;&#x6700;&#x591A;&#x7684;&#x65B9;&#x6CD5;&#x4F1A;&#x88AB;&#x6807;&#x7EA2;
</code></pre>
<pre><code>&#x6B64;&#x65F6;&#x5DF2;&#x7ECF;&#x53EF;&#x4EE5;&#x5B8C;&#x5168;&#x786E;&#x8BA4;,&#x5237;&#x65B0;&#x5C31;&#x662F;&#x6700;&#x8017;&#x6027;&#x80FD;&#x7684;&#x65B9;&#x6CD5;
</code></pre><p><strong>&#x6CE8;&#x610F;</strong>:  &#x5982;&#x679C;&#x6B64;&#x65F6;&#x53D1;&#x73B0;&#x6CA1;&#x6709;&#x4EFB;&#x4F55;&#x8F93;&#x51FA;,&#x90A3;&#x5C31;&#x8868;&#x793A;&#x8BE5;&#x7C7B;&#x7684;&#x65B9;&#x6CD5;&#x6CA1;&#x6709;&#x88AB;&#x8C03;&#x7528;,&#x90A3;&#x5C31;&#x91CD;&#x65B0;&#x627E;&#x5230;&#x4F60;&#x8BA4;&#x4E3A;&#x4F1A;&#x8FDB;&#x5165;&#x7684;&#x7C7B;&#x7684;&#x65B9;&#x6CD5;&#x8FDB;&#x884C;&#x8FFD;&#x8E2A;</p>
<h2 id="&#x7EE7;&#x7EED;&#x5B9A;&#x4F4D;&#x8FFD;&#x8E2A;&#x5FAA;&#x73AF;&#x8FC7;&#x7A0B;">&#x7EE7;&#x7EED;&#x5B9A;&#x4F4D;&#x8FFD;&#x8E2A;(&#x5FAA;&#x73AF;&#x8FC7;&#x7A0B;)</h2>
<pre><code class="lang-shell">    &#x4ECB;&#x7ECD;: &#x6B64;&#x65F6;&#x5DF2;&#x7ECF;&#x53EF;&#x4EE5;&#x786E;&#x5B9A;&#x8FDB;&#x5165;&#x7C7B; IViewPage&#x7684;&#x65B9;&#x6CD5; XxxPageRefresh ,&#x5219;&#x53EF;&#x4EE5;&#x4E0D;&#x7528;&#x661F;&#x53F7;
$ trace com.xxx.mmm.ViewPage XxxPageRefresh
Press Q or Ctrl+C to abort.
Affect(class-cnt:2 , method-cnt:2) cost in 334 ms.
</code></pre>
<p><strong>&#x70B9;&#x51FB;&#x5237;&#x65B0;&#x6309;&#x94AE;</strong></p>
<pre><code class="lang-shell">`---ts=2019-12-02 13:55:24;thread_name=DubboServerHandler-172.19.0.1:20880-thread-194/traceId:4d5c9000e636b000/time:1575266124487;id=3d4;is_daemon=true;priority=5;TCCL=sun.misc.Launcher$AppClassLoader@18b4aac2
    `---[3727.943775ms] com.xxx.mvc.list.XViewPage:XxxPageRefresh()
        +---[0.030719ms] com.xxx.mvc.list.XViewPage:isNeedXxxPageRefreshTree() #118
        +---[0.020451ms] com.xxx.mvc.list.XViewPage:XxxPageRefreshTreeView() #119
        +---[0.003388ms] com.xxx.mvc.list.XViewPage:getControl() #122
        +---[1.756648ms] com.xxx.filter.FilterContainer:XxxPageRefresh() #125
        +---[3725.926844ms] com.xxx.mvc.list.AbstractViewPage:XxxPageRefresh() #128
        |   `---[3725.265679ms] com.xxx.mvc.list.AbstractViewPage:XxxPageRefresh()
        |       +---[0.003695ms] com.xxx.list.ControlContext:getBillListId() #376
        |       +---[0.003427ms] com.xxx.mvc.list.AbstractViewPage:getControl() #376
        |       +---[0.211862ms] com.xxx.mvc.list.AbstractViewPage:getSelectedMainOrgIds() #378
        |       +---[0.05223ms] com.xxx.BillPage:setSelectedMainOrgIds() #378
        |       `---[3724.85784ms] com.xxx.BillPage:bindData() #379  &#x8FD9;&#x91CC;&#x6709;&#x8FDB;&#x4E00;&#x6B65;&#x627E;&#x5230;&#x8017;&#x65F6;&#x65B9;&#x6CD5;
        `---[0.010922ms] com.xxx.mvc.list.XViewPage:XxxPageRefreshQingView() #129
</code></pre>
<p><strong>&#x5FAA;&#x73AF;&#x5F80;&#x590D;&#x7684;&#x8FFD;&#x8E2A;&#x8FC7;&#x7A0B;</strong>
&#x4E0B;&#x9762;&#x5171;&#x8FFD;&#x8E2A;&#x4E86;8&#x6B21;,&#x6BCF;&#x6B21;&#x53EA;&#x622A;&#x53D6;&#x4E86;&#x6700;&#x8017;&#x65F6;&#x7684;&#x4E00;&#x884C;</p>
<pre><code class="lang-shell">+---[9026.036944ms] com.xxx.BillPage:getListData() #2716
+---[6588.815953ms] com.xxx.BillPage:getData() #2246
+---[8219.495835ms] com.xxx.entity.datamodel.IListModel:getData() #2044
 +---[7061.802945ms] com.xxx.entity.list.IListDataProvider:getData() #526
 +---[7436.476284ms] com.xxx.entity.list.IQuery:getData() #261
+---[7088.654679ms] com.xxx.list.query.impl.IdQuery:queryDB() #90
`---[5295.820831ms] com.xxx.orm.ORM:queryDB() #190
`---[7643.377622ms] com.xxx.db.DBExt:queryDB() #413
</code></pre>
<p><strong>&#x5B9A;&#x4F4D;&#x5230;&#x8FD9;&#x4E2A;&#x4F4D;&#x7F6E;&#x7684;&#x65F6;&#x5019;,&#x6839;&#x636E;&#x7ECF;&#x9A8C;&#x5224;&#x65AD;,&#x8FD9;&#x65F6;&#x4F1A;&#x6267;&#x884C;&#x67D0;&#x4E9B;SQL&#x8BED;&#x53E5;,&#x90A3;&#x57FA;&#x672C;&#x53EF;&#x4EE5;&#x8BA4;&#x4E3A;&#x662F;SQL&#x592A;&#x6162;&#x5BFC;&#x81F4;&#x5237;&#x65B0;&#x6027;&#x80FD;&#x95EE;&#x9898;</strong>
&#x5982;&#x679C;&#x8FD9;&#x65F6;&#x4F60;&#x6709;&#x672C;&#x5730;&#x73AF;&#x5883;,&#x90A3;OK&#x4E86;,&#x76F4;&#x63A5;debug&#x8C03;&#x8BD5;,&#x770B;&#x770B;&#x6267;&#x884C;&#x4EC0;&#x4E48;SQL,&#x7136;&#x540E;&#x89E3;&#x51B3;&#x95EE;&#x9898;</p>
<p><strong>&#x5982;&#x679C;&#x662F;&#x7EBF;&#x4E0A;&#x5462;,&#x4F60;&#x4E5F;&#x6CA1;&#x6CD5;debug,&#x600E;&#x4E48;&#x529E;?arthas&#x5E2E;&#x4F60;&#x641E;&#x5B9A;</strong></p>
<h2 id="&#x4F7F;&#x7528;arthas&#x7684;watch&#x547D;&#x4EE4;&#x67E5;&#x770B;&#x65B9;&#x6CD5;&#x8C03;&#x7528;&#x7684;&#x53C2;&#x6570;">&#x4F7F;&#x7528;arthas&#x7684;watch&#x547D;&#x4EE4;&#x67E5;&#x770B;&#x65B9;&#x6CD5;&#x8C03;&#x7528;&#x7684;&#x53C2;&#x6570;</h2>
<p>&#x4ECB;&#x7ECD;: watch  &#x5168;&#x7C7B;&#x540D;  &#x65B9;&#x6CD5;  &quot;{params}&quot; &#x56FA;&#x5B9A;&#x5199;&#x6CD5;(&#x5177;&#x4F53;&#x53C2;&#x8003;&#x6559;&#x7A0B;) -s&#x8868;&#x793A;&#x65B9;&#x6CD5;&#x8C03;&#x7528;&#x540E; -x 4&#x8868;&#x793A;&#x53C2;&#x6570;&#x6253;&#x5370;&#x7684;&#x5C42;&#x6570; -n&#x8868;&#x793A;&#x8DDF;&#x8E2A;&#x7684;&#x6B21;&#x6570; &apos;#cost&gt;100&apos;&#x8868;&#x793A;&#x8017;&#x65F6;&#x8D85;&#x8FC7;100&#x6BEB;&#x79D2;&#x7684;&#x624D;&#x8FFD;&#x8E2A;&#x6253;&#x5370;</p>
<pre><code class="lang-shell">$ watch com.xxx.db.DBExt queryDB &quot;{params}&quot; -s -x 4 -n 10000 &apos;#cost&gt;100&apos;
Press Q or Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 190 ms.
ts=2019-12-02 14:36:18; [cost=6134.645861ms] result=@ArrayList[
    @Object[][
        @String[com.xxx.list.query.impl.IdQuery],
        @DBroad[
            other=@DBroad[
                other=@DBroad[({})],
                basedata=@DBroad[basedata({})],
                base=@DBroad[basedata({})],
                main=@DBroad[basedata({})],
                workflow=@DBroad[wf({})],
                log=@DBroad[log({})],
                permission=@DBroad[permission({})],
                qing=@DBroad[qing({})],
                sharedDBroadMap=@ConcurrentHashMap[isEmpty=false;size=12],
                routeKey=@String[],
                tableRouteMap=null,
            ],
           ...&#x5F88;&#x591A;&#x5176;&#x4ED6;&#x53C2;&#x6570;
        ],
        @String[/*ORM*/ SELECT field1,field1,field1,field1 FROM table_name_l A\r\nLEFT JOIN table_name_lentry B ON B.FId=A.FId\r\nWHERE A.fbilltypeid = ?\r\nORDER BY A.fbillno DESC],
        ...&#x5F88;&#x591A;&#x5176;&#x4ED6;&#x53C2;&#x6570;,
    ],
]
</code></pre>
<p>&#x6253;&#x5370;&#x5982;&#x4E0A;,&#x53D1;&#x73B0;&#x4E86;SQL&#x8BED;&#x53E5;
&#x5230;&#x8FD9;&#x91CC;&#x5DF2;&#x7ECF;&#x627E;&#x5230;&#x6839;&#x672C;&#x539F;&#x56E0;,&#x5C31;&#x662F;SQL&#x975E;&#x5E38;&#x8017;&#x65F6;,&#x90A3;&#x95EE;&#x9898;&#x627E;&#x5230;&#x4E86;,&#x5C31;&#x5F97;&#x5177;&#x4F53;&#x95EE;&#x9898;&#x5177;&#x4F53;&#x5206;&#x6790;</p>
<h2 id="sql&#x5206;&#x6790;">SQL&#x5206;&#x6790;</h2>
<p>&#x6839;&#x636E;&#x4E0D;&#x540C;&#x7684;&#x6570;&#x636E;&#x5E93;&#x6709;&#x4E0D;&#x540C;&#x7684;&#x5206;&#x6790;&#x65B9;&#x5F0F;(&#x5927;&#x540C;&#x5C0F;&#x5F02;)</p>
<p>&#x4EE5;&#x4E0B;&#x662F;PostgreSQL&#x7684;&#x5206;&#x6790;</p>
<pre><code class="lang-sql">v7pg=&gt; **explain (analyze,verbose,timing,costs,buffers)** SELECT field1,field1,field1,field1 FROM table_name_l A LEFT JOIN table_name_lentry B ON B.FId=A.FId WHERE A.fbilltypeid = &apos;table_name_ld&apos; ORDER BY A.fbillno DESC limit 10000;
                                                                                 QUERY PLAN

---------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------
 Limit  (cost=38229.82..38254.82 rows=10000 width=74) (actual time=9509.114..9511.522 rows=10000 loops=1)
   Output: fieldn fieldn fieldn fieldn fieldm fieldn fieldm fieldn b.f
allamountfor, fieldm b.fallamount
   Buffers: shared hit=3 read=19260
   -&gt;  Sort  (cost=38229.82..38778.46 rows=219458 width=74) (actual time=9509.109..9510.903 rows=10000 loops=1)
         Output: fieldn fieldn fieldn fieldn fieldm fieldn fieldm b.fdisamoun
t, fieldn fieldm b.fallamount
         Sort Key: a.fbillno DESC
         Sort Method: top-N heapsort  Memory: 3398kB
         Buffers: shared hit=3 read=19260
         -&gt;  Hash Right Join  (cost=2017.14..22552.06 rows=219458 width=74) (actual time=151.222..701.738 rows=214561 loops
=1)
               Output: fieldn fieldn fieldn fieldn fieldm fieldn fieldm b.fdi
samount, fieldn fieldm b.fallamount
               Inner Unique: true
               Hash Cond: (b.fid = a.fid)
               Buffers: shared hit=3 read=19260
               -&gt;  Seq Scan on jdy_dev_151.table_name_lentry b  (cost=0.00..19958.69 rows=219469 width=49) (actual time=0.
075..403.442 rows=214821 loops=1)
                     Output: fieldn fieldn fieldn fieldn fieldn fieldn b.fallamountfo
r, fieldn b.fid
                     Buffers: shared hit=2 read=17762
               -&gt;  Hash  (cost=1758.08..1758.08 rows=20725 width=33) (actual time=151.058..151.060 rows=20725 loops=1)
                     Output: fieldm fieldm a.fbillno
                     Buckets: 32768  Batches: 1  Memory Usage: 1689kB
                     Buffers: shared hit=1 read=1498
                     -&gt;  Seq Scan on jdy_dev_151.table_name_l a  (cost=0.00..1758.08 rows=20725 width=33) (actual time=0.0
80..129.830 rows=20725 loops=1)
                           Output: fieldm fieldm a.fbillno
                           Filter: (a.fbilltypeid = &apos;table_name_outbound&apos;::citext)
                           Rows Removed by Filter: 1
                           Buffers: shared hit=1 read=1498
 Planning Time: 1.488 ms
 Execution Time: 9512.378 ms
(27 rows)

Time: 9515.867 ms (00:09.516)
v7pg=&gt;
</code></pre>
<h2 id="&#x5206;&#x6790;&#x53EF;&#x80FD;&#x662F;&#x6CA1;&#x6709;&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;">&#x5206;&#x6790;&#x53EF;&#x80FD;&#x662F;&#x6CA1;&#x6709;&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;</h2>
<p>A.fbilltypeid = &apos;table_name_outbound&apos; ORDER BY A.fbillno &#x8FD9;&#x4E24;&#x5904;&#x6CA1;&#x6709;&#x4F7F;&#x7528;&#x5230;&#x7D22;&#x5F15;
&#x67E5;&#x770B;&#x76F8;&#x5173;&#x7684;&#x8868;table_name_l&#x53D1;&#x73B0;&#x786E;&#x5B9E;&#x6CA1;&#x6709;&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;</p>
<p>&#x5EFA;&#x7ACB;&#x4E24;&#x4E2A;&#x7D22;&#x5F15;</p>
<p>CREATE INDEX idx_table_name_l_fbilltypeid ON table_name_l (fbilltypeid);<br>CREATE INDEX idx_table_name_l_fbillno ON table_name_l (fbillno);  </p>
<p>&#x518D;&#x6B21;&#x6D4B;&#x8BD5;&#x5237;&#x65B0;&#x529F;&#x80FD;,&#x53EA;&#x9700;&#x8981;1&#x79D2;&#x5DE6;&#x53F3;&#x5C31;&#x80FD;&#x6B63;&#x5E38;&#x663E;&#x793A;</p>
<h2 id="&#x5C0F;&#x7ED3;">&#x5C0F;&#x7ED3;</h2>
<p>&#x672C;&#x6B21;&#x5206;&#x6790;&#x4E2D;,&#x4E3B;&#x8981;&#x7528;&#x5230;&#x4E86;arthas&#x4F5C;&#x4E3A;&#x5206;&#x6790;&#x5DE5;&#x5177;,&#x4F7F;&#x7528;&#x7684;&#x547D;&#x4EE4;&#x662F; trace , watch &#x8FD9;&#x662F;&#x4E24;&#x4E2A;&#x6BD4;&#x8F83;&#x5E38;&#x7528;&#x7684;&#x547D;&#x4EE4;, &#x6574;&#x4F53;&#x8FC7;&#x7A0B;&#x57FA;&#x672C;&#x662F;&#x53CD;&#x590D;&#x5B9A;&#x4F4D;&#x4E0D;&#x540C;&#x7684;&#x65B9;&#x6CD5;,&#x6700;&#x540E;&#x627E;&#x5230;&#x8017;&#x65F6;&#x7684;&#x5177;&#x4F53;&#x4F4D;&#x7F6E;,&#x7136;&#x540E;&#x5177;&#x4F53;&#x95EE;&#x9898;&#x5177;&#x4F53;&#x5206;&#x6790;,&#x6BD4;&#x5982;&#x53EF;&#x80FD;&#x662F;&#x5FAA;&#x73AF;&#x95EE;&#x9898;,&#x5728;&#x5927;&#x5FAA;&#x73AF;&#x4E2D;&#x8BBF;&#x95EE;&#x6570;&#x636E;&#x5E93;,&#x6216;&#x8005;&#x662F;&#x8BBF;&#x95EE;&#x8FDC;&#x7A0B;&#x5176;&#x4ED6;&#x670D;&#x52A1;,&#x6216;&#x8005;&#x65F6;&#x8D85;&#x65F6;&#x7B49;&#x5F85;,&#x672C;&#x6B21;&#x5B9A;&#x4F4D;&#x76F8;&#x5BF9;&#x6BD4;&#x8F83;&#x7B80;&#x5355;,&#x5C5E;&#x4E8E;&#x56FA;&#x5B9A;&#x60C5;&#x51B5;,&#x5728;&#x5927;&#x6570;&#x636E;&#x91CF;&#x4E0B;&#x6570;&#x636E;&#x5E93;&#x6CA1;&#x6709;&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;&#x5BFC;&#x81F4;SQL&#x67E5;&#x8BE2;&#x6162;,&#x5EFA;&#x7ACB;&#x7D22;&#x5F15;&#x95EE;&#x9898;&#x57FA;&#x672C;&#x89E3;&#x51B3;. &#x5B9A;&#x4F4D;&#x7684;&#x8FC7;&#x7A0B;&#x57FA;&#x672C;&#x7C7B;&#x4F3C;,&#x5F53;&#x7136;&#x8FD8;&#x662F;&#x9700;&#x8981;&#x7075;&#x6D3B;&#x5904;&#x7406;&#x5177;&#x4F53;&#x95EE;&#x9898;,&#x8FD9;&#x6837;&#x624D;&#x80FD;&#x66F4;&#x5FEB;&#x89E3;&#x51B3;.</p>

                                
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